📘 Structure of Atom📚 Electron

Q1

Electron was Discovered by:

🎯 DSSSB DASS (Grade-II), 24-07-2019 (Shift-I)

📘 Solution📚 Colloid and its types

Q2

Fog is a:

🎯 DSSSB DASS (Grade-II), 23-07-2019 (Shift-1)

📘 Chemistry in Everyday Life📚 Food Preservatives

Q3

Sodium benzoate can be used as:

🎯 DSSSB DASS (Grade-II), 18-07-2019 (Shift-II)

📘 Discoveries📚 Misc

Q4

Who among the following is credited to co-discover the elements with atomic number 95-106 in of the periodic table?

🎯 DSSSB DASS (Grade-II), 23-07-2019 (Shift-II)

📘 Acids, Bases and Salts📚 Name of Acid present in compounds

Q5

The irritation caused by the sting of an ant is due to the release of......... in body.

🎯 DSSSB DASS (Grade-II), 19-07-2019 (Shift-II)

📘 Polymer📚 Types of polymers on basis of Structure- Natural, Semi-Synthetic, Synthetic

Q6

Which of the following nutrients is made of chains of amino acids?

🎯 DSSSB DASS (Grade-II), 19-07-2019 (Shift-II)

📘 Acids, Bases and Salts📚 Neutralization Reaction

Q7

The products of the process of neutralisation, i.e., reaction between an acid and a base, are:

🎯 DSSSB DASS (Grade-II), 19-07-2019 (Shift-III)

📘 Acids, Bases and Salts📚 Misc

Q8

Which of the following is NOT and acid?

🎯 DSSSB DASS (Grade-II), 19-07-2019 (Shift-III)

📘 Important Chemical Compounds📚 Slaked lime

Q9

Calcium Hydroxide is present in:

🎯 DSSSB DASS (Grade-II), 24-07-2019 (Shift-III)

📘 Important Chemical Compounds📚 Plaster of Paris

Q10

Calcium sulphate hemihydrate is the chemical name of:

🎯 DSSSB DASS (Grade-II), 19-07-2019 (Shift-II)

📘 Chemistry in Everyday Life📚 Pesticides and Insecticides

Q11

Which of the following is used as a moth ball?

🎯 DSSSB DASS (Grade-II), 18-07-2019 (Shift-II)

📘 Organic Chemistry📚 Hydrocarbons

Q12

The number 'CETANE' is used to denote the quality of which of the following fuels?

🎯 DSSSB DASS (Grade-II), 25-07-2019 (Shift-I)

📘 Polymer📚 Misc

Q13

Which one of the following is not a short form of synthetic non-biodegradable polymer?

🎯 DSSSB DASS (Grade-II), 25-07-2019 (Shift-1)

📘 Chemistry in Everyday Life📚 Dyes and Pigments

Q14

Alizarin is a type of

🎯 DSSSB DASS (Grade-II), 25-07-2019 (Shift-I)

📘 Classification of Matter on the basis of Chemical Properties- I📚 Pure Substance- Element

Q15

Who was the first to give an experimentally useful definition of an element?

🎯 DSSSB DASS (Grade-II), 24-07-2019 (Shift-1)

📘 Radioactivity📚 Applications of Radioactivity

Q16

Kalpakkam mini reactor operates for

🎯 DSSSB DASS (Grade-II), 23-07-2019 (Shift-I)

📘 Important Chemical Compounds📚 Bleaching Powder

Q17

What is the common name of calcium oxychloride?

🎯 DSSSB DASS (Grade-II), 18-07-2019 (Shift-III)

Chemistry - MOST IMPORTANT DSSSB DASS Previous Year Questions